FRUSTRATED LEWIS PAIRS ·
metal-free H₂ splitting
un
seel
.com · Stephan 2006 · B(C₆F₅)₃
acid–base gap
too far
H–H bond
intact
state
—
Lewis acid — boron (empty p)
Lewis base — phosphorus (lone pair)
H₂ → H⁺ + H⁻ (heterolytic)
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.com · Frustrated Lewis Pairs